Control apparatus for vehicle

Abstract

A control apparatus for a vehicle includes a controller configured to (i) calculate, based on a distance and a relative speed between a host vehicle and a forward obstacle, a collision prediction time of a collision between the forward obstacle and the host vehicle; (ii) execute a predetermined control when the collision prediction time is less than or equal to a predetermined threshold, the predetermined control reducing a probability of the collision between the forward obstacle and the host vehicle, and (iii) decrease the predetermined threshold, when an accelerator pedal releasing operation is performed under a situation where the forward obstacle exists, depending on a first distance between the host vehicle and the forward obstacle at a time at which the accelerator pedal releasing operation is performed.

What is claimed is: 
     
       1. A controller for a vehicle, the controller performing, upon there being a probability of a collision between a forward obstacle and a host vehicle, a predetermined control that reduces the probability of the collision, wherein
 the controller delays a timing of executing the predetermined control such that the timing is delayed under a situation in which an accelerator pedal releasing operation is performed while a parameter is within a range compared to when the parameter is not within the range, the range having an upper limit value thereof, the parameter being 
 (1) a distance between the host vehicle and a current position of the forward obstacle; 
 (2) a first time corresponding to the distance between the host vehicle and the forward obstacle divided by a current host vehicle speed; or 
 (3) a second time corresponding to the distance between the host vehicle and the forward obstacle divided by a current relative speed between the host vehicle and the forward obstacle. 
 
     
     
       2. The controller of  claim 1 , wherein the predetermined control includes sounding of an alarm. 
     
     
       3. The controller of  claim 1 , wherein the predetermined control includes actuating brakes of the vehicle.